Finding the Fourth Proportional to 938,539.06, 1,296,253.11 and 636,208.18
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Solution
The fourth proportional to 938,539.06, 1,296,253.11 and 636,208.18 is: 878,692.07
Step by Step Solution
- Step 1: Write the proportion equation
938,539.06 : 1,296,253.11 = 636,208.18 : x - Step 2: Convert to fraction form
938,539.06/1,296,253.11 = 636,208.18/x - Step 3: Cross multiply
938,539.06x = 1,296,253.11 × 636,208.18 - Step 4: Simplify right side
938,539.06x = 824,686,831,932.44 - Step 5: Solve for x
x = 824,686,831,932.44/938,539.06 - Step 6: Final answer
x = 878,692.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.